Tremendous volume expansion of silicon anode during cycling limits its further application. Here, a novel silicon nano-ribbon (SiNR) with (110) crystal plane is proposed as anode for the Lithium-ion batteries. The SiNRs with (110) crystal plane have been synthesized by a simple electrochemical micromachining method. Both invasion direction of the lithium-ions and expansion directions of the lithiated silicon are limited to the <110> crystal direction. Recrystallization of SiNR induced by the retention of silicon atomic chains after delithiation is verified experimentally and theoretically. Such SiNR, without necessary surface coating treatment, exhibits high ionic conductivity, high stable solid electrolyte interphase (SEI) and long cycling stability, retaining a specific capacity of 1721.3 mAh g⁻¹ (∼80% capacity retention) after 2000 cycles with an initial coulombic efficiency (CE) of 83%. The rational design of nanostructured battery materials and electrodes in this work also opens a new dimension in material design for other batteries.

硅阳极在循环过程中的巨大体积膨胀限制了其进一步应用。在这里，提出了一种具有（110）晶面的新型硅纳米带（SiNR）作为锂离子电池的负极。具有（110）晶面的SiNRs已通过简单的电化学微加工方法合成。锂离子的侵入方向和锂化硅的膨胀方向都限于<110>晶向。通过实验和理论验证了脱锂后硅原子链保留引起的 SiNR 再结晶。这种无需表面涂层处理的SiNR表现出高离子电导率、高稳定的固体电解质界面（SEI）和长循环稳定性，保持1721.3 mAh g ^-1的比容量2000 次循环后（~80% 的容量保持率），初始库仑效率 (CE) 为 83%。这项工作中纳米结构电池材料和电极的合理设计也为其他电池的材料设计开辟了新的维度。